moxcms/conversions/
transform_lut3_to_4.rs

1/*
2 * // Copyright (c) Radzivon Bartoshyk 3/2025. All rights reserved.
3 * //
4 * // Redistribution and use in source and binary forms, with or without modification,
5 * // are permitted provided that the following conditions are met:
6 * //
7 * // 1.  Redistributions of source code must retain the above copyright notice, this
8 * // list of conditions and the following disclaimer.
9 * //
10 * // 2.  Redistributions in binary form must reproduce the above copyright notice,
11 * // this list of conditions and the following disclaimer in the documentation
12 * // and/or other materials provided with the distribution.
13 * //
14 * // 3.  Neither the name of the copyright holder nor the names of its
15 * // contributors may be used to endorse or promote products derived from
16 * // this software without specific prior written permission.
17 * //
18 * // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 * // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
22 * // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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27 * // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29use crate::conversions::LutBarycentricReduction;
30use crate::conversions::interpolator::{BarycentricWeight, MultidimensionalInterpolation};
31use crate::transform::PointeeSizeExpressible;
32use crate::{
33    BarycentricWeightScale, CmsError, DataColorSpace, InterpolationMethod, Layout,
34    TransformExecutor, TransformOptions,
35};
36use num_traits::AsPrimitive;
37use std::marker::PhantomData;
38
39pub(crate) struct TransformLut3x4<
40    T,
41    U: AsPrimitive<usize>,
42    const LAYOUT: u8,
43    const GRID_SIZE: usize,
44    const BIT_DEPTH: usize,
45    const BINS: usize,
46    const BARYCENTRIC_BINS: usize,
47> {
48    pub(crate) lut: Vec<f32>,
49    pub(crate) _phantom: PhantomData<T>,
50    pub(crate) _phantom1: PhantomData<U>,
51    pub(crate) interpolation_method: InterpolationMethod,
52    pub(crate) weights: Box<[BarycentricWeight<f32>; BINS]>,
53    pub(crate) color_space: DataColorSpace,
54    pub(crate) is_linear: bool,
55}
56
57impl<
58    T: Copy + AsPrimitive<f32> + Default + PointeeSizeExpressible,
59    U: AsPrimitive<usize>,
60    const LAYOUT: u8,
61    const GRID_SIZE: usize,
62    const BIT_DEPTH: usize,
63    const BINS: usize,
64    const BARYCENTRIC_BINS: usize,
65> TransformLut3x4<T, U, LAYOUT, GRID_SIZE, BIT_DEPTH, BINS, BARYCENTRIC_BINS>
66where
67    f32: AsPrimitive<T>,
68    u32: AsPrimitive<T>,
69    (): LutBarycentricReduction<T, U>,
70{
71    #[inline(always)]
72    fn transform_chunk<'b, Tetrahedral: MultidimensionalInterpolation<'b, GRID_SIZE>>(
73        &'b self,
74        src: &[T],
75        dst: &mut [T],
76    ) {
77        let cn = Layout::from(LAYOUT);
78        let channels = cn.channels();
79
80        let value_scale = ((1 << BIT_DEPTH) - 1) as f32;
81
82        for (src, dst) in src.chunks_exact(channels).zip(dst.chunks_exact_mut(4)) {
83            let x = <() as LutBarycentricReduction<T, U>>::reduce::<BIT_DEPTH, BARYCENTRIC_BINS>(
84                src[cn.r_i()],
85            );
86            let y = <() as LutBarycentricReduction<T, U>>::reduce::<BIT_DEPTH, BARYCENTRIC_BINS>(
87                src[cn.g_i()],
88            );
89            let z = <() as LutBarycentricReduction<T, U>>::reduce::<BIT_DEPTH, BARYCENTRIC_BINS>(
90                src[cn.b_i()],
91            );
92
93            let tetrahedral = Tetrahedral::new(&self.lut);
94            let v = tetrahedral.inter4(x, y, z, &self.weights);
95            if T::FINITE {
96                let r = v * value_scale + 0.5;
97                dst[0] = r.v[0].min(value_scale).max(0.).as_();
98                dst[1] = r.v[1].min(value_scale).max(0.).as_();
99                dst[2] = r.v[2].min(value_scale).max(0.).as_();
100                dst[3] = r.v[3].min(value_scale).max(0.).as_();
101            } else {
102                dst[0] = v.v[0].as_();
103                dst[1] = v.v[1].as_();
104                dst[2] = v.v[2].as_();
105                dst[3] = v.v[3].as_();
106            }
107        }
108    }
109}
110
111impl<
112    T: Copy + AsPrimitive<f32> + Default + PointeeSizeExpressible,
113    U: AsPrimitive<usize>,
114    const LAYOUT: u8,
115    const GRID_SIZE: usize,
116    const BIT_DEPTH: usize,
117    const BINS: usize,
118    const BARYCENTRIC_BINS: usize,
119> TransformExecutor<T>
120    for TransformLut3x4<T, U, LAYOUT, GRID_SIZE, BIT_DEPTH, BINS, BARYCENTRIC_BINS>
121where
122    f32: AsPrimitive<T>,
123    u32: AsPrimitive<T>,
124    (): LutBarycentricReduction<T, U>,
125{
126    fn transform(&self, src: &[T], dst: &mut [T]) -> Result<(), CmsError> {
127        let cn = Layout::from(LAYOUT);
128        let channels = cn.channels();
129        if src.len() % channels != 0 {
130            return Err(CmsError::LaneMultipleOfChannels);
131        }
132        if dst.len() % 4 != 0 {
133            return Err(CmsError::LaneMultipleOfChannels);
134        }
135        let src_chunks = src.len() / channels;
136        let dst_chunks = dst.len() / 4;
137        if src_chunks != dst_chunks {
138            return Err(CmsError::LaneSizeMismatch);
139        }
140
141        if self.color_space == DataColorSpace::Lab
142            || (self.is_linear && self.color_space == DataColorSpace::Rgb)
143            || self.color_space == DataColorSpace::Xyz
144        {
145            use crate::conversions::interpolator::Trilinear;
146            self.transform_chunk::<Trilinear<GRID_SIZE>>(src, dst);
147        } else {
148            match self.interpolation_method {
149                #[cfg(feature = "options")]
150                InterpolationMethod::Tetrahedral => {
151                    use crate::conversions::interpolator::Tetrahedral;
152                    self.transform_chunk::<Tetrahedral<GRID_SIZE>>(src, dst);
153                }
154                #[cfg(feature = "options")]
155                InterpolationMethod::Pyramid => {
156                    use crate::conversions::interpolator::Pyramidal;
157                    self.transform_chunk::<Pyramidal<GRID_SIZE>>(src, dst);
158                }
159                #[cfg(feature = "options")]
160                InterpolationMethod::Prism => {
161                    use crate::conversions::interpolator::Prismatic;
162                    self.transform_chunk::<Prismatic<GRID_SIZE>>(src, dst);
163                }
164                InterpolationMethod::Linear => {
165                    use crate::conversions::interpolator::Trilinear;
166                    self.transform_chunk::<Trilinear<GRID_SIZE>>(src, dst);
167                }
168            }
169        }
170
171        Ok(())
172    }
173}
174
175pub(crate) fn make_transform_3x4<
176    T: Copy + AsPrimitive<f32> + Default + PointeeSizeExpressible + 'static + Send + Sync,
177    const GRID_SIZE: usize,
178    const BIT_DEPTH: usize,
179>(
180    layout: Layout,
181    lut: Vec<f32>,
182    options: TransformOptions,
183    color_space: DataColorSpace,
184    is_linear: bool,
185) -> Box<dyn TransformExecutor<T> + Sync + Send>
186where
187    f32: AsPrimitive<T>,
188    u32: AsPrimitive<T>,
189    (): LutBarycentricReduction<T, u8>,
190    (): LutBarycentricReduction<T, u16>,
191{
192    match layout {
193        Layout::Rgb => match options.barycentric_weight_scale {
194            BarycentricWeightScale::Low => Box::new(TransformLut3x4::<
195                T,
196                u8,
197                { Layout::Rgb as u8 },
198                GRID_SIZE,
199                BIT_DEPTH,
200                256,
201                256,
202            > {
203                lut,
204                _phantom: PhantomData,
205                _phantom1: PhantomData,
206                interpolation_method: options.interpolation_method,
207                weights: BarycentricWeight::<f32>::create_ranged_256::<GRID_SIZE>(),
208                color_space,
209                is_linear,
210            }),
211            #[cfg(feature = "options")]
212            BarycentricWeightScale::High => Box::new(TransformLut3x4::<
213                T,
214                u16,
215                { Layout::Rgb as u8 },
216                GRID_SIZE,
217                BIT_DEPTH,
218                65536,
219                65536,
220            > {
221                lut,
222                _phantom: PhantomData,
223                _phantom1: PhantomData,
224                interpolation_method: options.interpolation_method,
225                weights: BarycentricWeight::<f32>::create_binned::<GRID_SIZE, 65536>(),
226                color_space,
227                is_linear,
228            }),
229        },
230        Layout::Rgba => match options.barycentric_weight_scale {
231            BarycentricWeightScale::Low => Box::new(TransformLut3x4::<
232                T,
233                u8,
234                { Layout::Rgba as u8 },
235                GRID_SIZE,
236                BIT_DEPTH,
237                256,
238                256,
239            > {
240                lut,
241                _phantom: PhantomData,
242                _phantom1: PhantomData,
243                interpolation_method: options.interpolation_method,
244                weights: BarycentricWeight::<f32>::create_ranged_256::<GRID_SIZE>(),
245                color_space,
246                is_linear,
247            }),
248            #[cfg(feature = "options")]
249            BarycentricWeightScale::High => Box::new(TransformLut3x4::<
250                T,
251                u16,
252                { Layout::Rgba as u8 },
253                GRID_SIZE,
254                BIT_DEPTH,
255                65536,
256                65536,
257            > {
258                lut,
259                _phantom: PhantomData,
260                _phantom1: PhantomData,
261                interpolation_method: options.interpolation_method,
262                weights: BarycentricWeight::<f32>::create_binned::<GRID_SIZE, 65536>(),
263                color_space,
264                is_linear,
265            }),
266        },
267        _ => unimplemented!(),
268    }
269}
moxcms/conversions/transform_lut3_to_4.rs

moxcms/conversions/
transform_lut3_to_4.rs
